Liquid dispensing device



May 16, 1944. D. SAMIRAN 2,348,757

LIQUID DISPENS ING DEVICE Filed April 24, 1940 s sheets-sheet 1 /N VEN TOR' 0.41//0 S4/V ,ef/4N May 16, 1944. D. sAMlRAN 2,348,757

LIQUID D|SPENSING DEVICE Filed April 24, 1940 :s sheets-sheet 2 /NVEN TOI? 3 114 A RNEY,

LIQUID DISPENS ING DEVICE Filed April 24, 1940 5 Sheets-Sheet 3 Patented May 16, 1944 1 LIQUID msPENslNc DEVICE Davia samiran, Fairfield, omo

Application April 24, 1940, Serial No. 331,366

(c1. 21o-s4) (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) 9 Claims.v

The invention described herein may be manu- .factured and used by or for the Government for governmental purposes without the payment to me of any royalty thereon.

This invention relates to devices for dispensing liquid petroleum products, such as gasoline or other fuel for use in internal combustion engines, whereby such liquid may be dispensed in a rapid and continuous manner from a reservoir, forming a source of liquid supply, to a tank or other receptacle to be filled.

A tank or reservoir of liquid petroleum product frequently contains, in addition to the liquid petroleum product, water and a petroleum emulsion which is lighter than the water but heavier than the liquid petroleum product. Such an emulsion may be, for example, a heavier constituent formed in the manufacture or during the storage of the liquid petroleum product, or a constituent of intermediate specific gravity formed by the action of the .water or liquid petroleum product upon the tank or reservoir. In the dispensing of a liquid petroleum product from a tank or reservoir, this water and petroleum emulsion become entrained in the liquid petroleum product and are dispensed therewith. This is always objectionable and particularly so in respect to gasoline or other liquid petroleum product to be used in airplane engines.

Among the objects of the present invention are to provide a device adapted continuously to dispense at a high rate of iiow a liquid petroleum product in a manner such as to separate entrained water and petroleum emulsion therefrom While the liquid petroleum product is being dispensed. y

A further object is to provide means for closing the dispensing line to prevent the separated water and/or petroleum emulsion from being discharged from the dispensing line with the liquid petroleum product.

Still another object isto provide a first float control means which is buoyant in water and not in the liquid petroleum product or in an emulsion of the liquid petroleum product, for discharging the water only, and an additional oat controlling means which is sensitive to the petroleum emulsion but not to the liquid petroleum product itself, whereby to cause the closure of the dispensing line in the presence of a denite accumuiation of petroleum emulsion in the fuel being dispensed.

Still another object is to provide a device for dispensing gasoline and similar liquid fuels in a rapid, continuous manner at a rate of approximately 210 gallons a minute, through a three-inch discharge line, while preventing water or petroleum emulsion entrained in the gasoline from being discharged through the line; and to provide these and other objects of invention as will be apparent from a perusal of the following specification when taken in connection with the accompanying drawings, wherein Figure 1 is a side view of a truck or trailer equipped withmy invention Figure 2 is a cross sectional view through the water separating, discharging device, showing the float in lower position;

Figures 3 and4 are corresponding views showing the float in correspondingly different positions:

Figure 5 is an enlarged sectional View taken through the device;

Figure 6 is a view on the line 6-6 of Figure 5;

Figure '7 isI a fragmentary view of the central portion of Figures 5 and 6; and

Figure 8 is a portable device embodying the invention.

Referring now to the drawings in detail, I have shown a container.forming a tank or reservoir 2 v(Fig. 1) for holding a relatively large quantity of liquid petroleum product, such, for instance, as gasoline, and from this tank the gasoline is drawn through a dispensing ow line having a portion or conduit 4 connected to the tank and to a device 6 from which the liquid petroleum product is drawn through the dispensing line portion or conduit 8 by means of any desired pump I0. 0n the discharge side of the pump is located a meter I2 of any desired description, which discharges into a continuation of the flow line, herein shown as a iiexible hose I4 terminating in a valve controlled nozzle I6 of the usual type.

In the present invention the reservoir 2 is preferably shown as forming the body portion proper of a trailer or truck having a relatively large fill opening I8 and mounted'on wheels 20, whereby the tank 2 may be drawn to a remote location for filling the tanks of airplanes and the like, or for filling underground tanks, if desired.

The device has other adaptations than as applied to a truck or trailer, since it may be installed in mostl any type of device dispensing petroleum products free of water and/or petroleum emulsion.

The mechanism within the housing of the device G is shown in detail in Figures 5 and 6 and diagrammatically illustrated in Figures 2 to 4. It comprises an outer shell or casing-22 having an inlet M and a discharge outlet 26 suitably formed for connection to the conduits 4 and 8 of the dispensing line as shown `inliigure 1.

. In Figures 2, 3 and 4 the inlet conduit 24 is shown as formed with walls gradually curving, so`

that a centrifugal force is exerted upon the liquid as it is drawn by means of the pump Ill from the tank 2 into the casing 8, this centrifugal force' causing water or petroleum emulsion entrained in the incoming liquid petroleum product, tobe v thrown downwardly along the bottom portion of at the lower portion of the'inlet 24 than at the upper portion.

The casing 22 is formed substantially centrally of its top with a rather large fluid outlet 28 which connects with a laterally extending fluid discharge passage 30 joining the conduit 8. Concentric with the outlet passage 28 is a vertical, elongated float chamber 32 having cylindrical walls which are provided with a plurality of relatively large ports 34 in their upper portions, to permit passage of petroleum product fuel from the space surrounding the cylindrical walls 32 inwardly through these ports, thence outwardly through port 28. The port 28 is provided at its upper portion with an inclined valve seat 36.

Concentrically surrounding the float chamber 32 and mounted within the casing 22 is a cylinder 38 which is provided with a downwardly inclined bottom 48 and peripheral, vertical walls 42 which make liquid-tight connection with the top 440i the casing 22. The walls 42 are formed of wire mesh screen of from 50 to 100 mesh to the inch, and there are plurality of reinforcing strips 46 and 48 for stiiening the screen and holding it in position. The bottom member 40 is fastened to a central casting 58.

The casting 50 forms a part of the bottom of the float chamber 32. A somewhat similarcasting 52 is bolted to the main casting 50 and forms a downward extension thereof. These two castings 50 and 52 are provided with registering bores forming a liquid inlet to the chamber 32.

The bottom member 40 is provided at portions `remote from the inlet 24 with openings 54, and a screen 55 overlies member 48 and the openings 54. If desired, a lower portion of the Wall 24 of the outer casing may be provided with an observation window 56 suitably bolted in place, as by means of 'bolts 58.

The lower portion of the tting 52 is provided with an elongated pipe extension 80 which curves downwardly and is formed at its outer end with an open-mouth horn or nozzle 82 disposed at the bottom of the inlet 24 and directly facing the inlet, whereby it is directly within the influence of the inrushing liquid petroleum product pumped from the reservoir 2 by means of pump I8. The height of this horn 62 at itsv mouth is relatively small in proportion to the diameter or height of the inlet opening 24 so that only a portion of the liquid passing through the inlet will enter the mouth of the horn 62. However, the horn, at its mouth, extends completely across the inlet 24 in a horizontal direction as seen in Figure 6.

It will thus be seen that, since the mouth of the horn 62 extends across the bottom of the chamber 24, and the liquid as it enters the inlet is subjected to a somewhat centrifugal force,

there will-'be a tendency for the water and/or petroleum emulsion. which are heavier than gasoline, to be downwardly toward the bottom ofthe inlet and enter Vthe horn 82. Therefore, the relatively 'small body of liquid entering the mouth or horn 82 will contain va. greater proportion of entrained water and/,or emulsion than the main body of liquid passing above the horn. The conduit directs this relatively small body of liquid into the chamber 32 through the registering passages of the ttings 58 and 52. If no water or petroleum emulsion is present in the liquid petroleum product, only the petroleum product itself williiow through the mouth of horn 82 and through-the conduit 88.

It will be noted that as the stream of petroleum product leaves the inlet 24it is spread out laterally through the entire horizontal cross section of the casing and is directed thereacross by means of the'baiile wall 48. The entering liquid petroleum product flows entirely across the bottom portion of chamber 38 within the casing 22, and also flows upwardly along the screen wall 42. During this travel across the bottom baliie 40, the liquid is slowed down substantially to onehalf of its entering velocity. In other words, the originally fast moving column of liquid petroleum product now traverses the chamber at a substantial reduction in speed, and then passes through the fine-mesh screen walls 54 and 42, which are from 50 to 100 mesh per inch, whereby to remove entrained water therefrom. The liquid petroleum product then passes through the ports 34, past the valve seat 38 and the discharge port 28, into the outlet 38, and thence through the flexible hose I4 to be discharged through the nozzle. A portion only of the liquid may pass upwardly through the screened bottom walls 54 relatively close to the fittings 50 and 52. As the liquid passes through the relatively large ports 34, it will move with considerable velocity toward the outlet 28.

Disposed within the float cylinder 32 is a relatively large iloat 64 preferably formed of two metal sections suitably joined together to form an' enclosed, sealed, relatively hollow member having a central, tubular, hollow sleeve 66 adapted to slide vertically on a circular guide 68 rigidly upstanding from a base 18 bolted to the bottom fitting 50. The base 10 is formed as a spider providing a series of openings 12 by which liquid may flow from the port 14 in the bottom casting 50 of the cylinder 32 into the float chamber 18 between the bottom wall of the float chamber and the bottom of the float. This liquid, or petroleum product, when the pump is in operation, flows upwardly between the outer wall of the float and the inner wall of the float chamber 32'. Thence it passes upwardly and joins the column of liquid entering the upper portion of the float chamber through the ports 34, discharging with the liquid through the outlet 28.

The float is provided with a separate valve portion 18 suitably welded around its edge to the top of the iioat and formed with sloping sides 82 to engage the inclined walls of the valve seat.- The central portion of the top of the valve is provided with a plugged port'84 which, when open permits the float to be filled with oil that flows from this port 84 through a cross port 86, thence downwardly through openings 88 in the top of the float.

The float is ballasted by this oil so that the float will lie in water up to the line marked 98 on the float. This float thus ballasted is buoyant in petroleum emulsion and the ballast is such, in relation to the size of the passageway between the oat,` when in a lower position, and the iloat chamber, that liquid petroleum product passing upwardly through this passageway, causes no movement of the oat. However, when petroleum emulsion or water enters the lower portion of the float chamber and in rising upwardly throughk this passage approachesv the line marked 90, the oat begins to rise. As the top of the oat approaches the inwardly extending portion 92 and lthe float passes into this portion, it forms a restriction in the portion of the passage throughv which the liquid has been iiowing, whereby the velocity of the flowing column of liquid petroleum product is increased. The liquid at this increased velocity accelerates the upward movement of the float and causes the float to rise ahead of the rise in level of the petroleum emulsion br water, whereby thus to position the top of the float more quickly within the zone of inuence of the inwardly moving stream of liquid passing through the ports 34| into the port 28. The suction pressure at the port 28 and the stream of liquid flowing through the ports 34 cause the iloat to move still more rapidly upwardly and cause the valve on the top of the float to close upon its valve seat. By this means any possibility of petroleum emulsion or water passing through the outlet port 20 is precluded.

In certain instances I may desire to alter the cross-sectional area of the ports 3B, whereby to cause a greater pull on the liquid entering the chamber 22 through lower openings 'l2 to assist in causing the iioat to rise. This is accomplished by a sleeve which is slidable vertically along the oat chamber walls 32 and held in any desired position oi' adjustment by means of a screw 06.

By reason of the foregoing construction, it will be appreciated that, as the liquid petroleum product entersy the inlet port 2d at relatively high velocity-and in the present case this device is adapted to discharge gasoline or similar petroleum product through a three-inch pipe at a rate of approximately 210 gallons per minute-and as the petroleum product spreads across the lower portion of the casing 22, its velocity will be reduced substantially one-half and, due to the bame plates, it will be directed thereacross and thence upwardly through the screens, at which speed the water will not pass thescreens of such fine mesh and will be automatically separated therefrom. The now relatively slowly flowing gasoline or petroleum product will fiow inwardly c and pass through the upper openings 30 of the iioat chamber and thence through the discharge opening 22 and out the dispensing line.

In order to preclude any possibility that entrained water or petroleum emulsion might be carried along with the incoming liquid petroleum product and be discharged through the valve port into the outlet therewith, I have provided means for continuously conducting a portion of the incoming liquid, preferably a portion which has a larger percentage oi entrained water and/or petroleum emulsion therein, at substantially the same speed as the incoming liquid, prior to its deceleration directly to a iioat controlled cylinder which is arranged or ballasted to be sensitive to water and/or petroleum emulsion. In the presence oi either water or petroleum emulsion, the

. float will be raised, as hereinbefore described,

and thereafter quickly close the valve in a ,manner such that no petroleum emulsion or water .can reach the valve port before the valve closes upon its seat.

The water entrained in the liquid petroleum product which is flowing at slow speed, will not pass the ne mesh screens and hence will be separated out and will travel downwardly by gravity to the bottom of the chamber 22, and into a basin or chamber 98 suitably bolted, as at |00, to the bottom of this casing 22. This bottom of casing 22 slopes downwardly toward chamber 88 so as to direct the water thereinto.

The center portion of this chamber 98 is directly coaxial with the center axis of the upper float chamber 32, and in this chamber 98 I provide a float chamber formed by a concentric casing having a bottom wall |02 and having a vertically extending screened side wall |04, thescreen oi which is from 50 to 100 mesh per inch. A top wall |06 closes the top of the screen wall |04.

A central fitting |08 is adapted to clampingly engage within an aperture ||0 in the bottom of the basin 98. This fitting |08 is centrally screw threaded to receive another iitting ||2 centrallyy a hollow, central tube |28 of a iloat |30, whereby the float may rise and fall vertically. The hollow guide |20 is adapted to receive a centrally disposed needle valve |32 adapted to seat upon the valve seat |22. The upper portion of the needle has soldered `thereto an open ended sleeve |00 within which ts a spring |36, the upper end of whichvtakes against a plate |38 carried by the upper portion oi' the oat |30. The upper end oi' the needle Valve |32 is of reduced cross-section and passes freely through an opening in the plate |32 which is adapted tov be engaged by'adjusting nuts'threaded on the upper end of the needle valve. By this means the spring normally holds the needle valve under sufiicient tension to hold the valve on its seat against any movement oi the oat due to agitation or vibration, but permits the float to rise under the buoyant effect oi' a liquid of sumcient specific gravity. This float is hollow and is of two-piece construction and is formed with filling openings itu by which it may be filled with any desired type oi.' medium to cause it to float in water, but not in petroleum emulsion or gasoline -or similar liquid petroleum product.

To the side of the central tting, the bottom wall oi the iioat basin 90 is provided with a threaded plug |02 controlling a port which, when opened, will permit the entire interior of the device to be iiushed with water. To this end the upper portion of the discharge outlet 30 is provided with a filling plug |44 to permit water to be supplied thereinto for flushing the screens, the oat, and the valves, to remove sediment, etc.

By reason ofthe foregoing construction, it will be appreciated that, as the liquid petroleum product enters the inlet port 24 at relatively high velocity, it will at once spread cut across the bottom of the relatively large casing 22. The baiile 40 will direct the iiow downwardly, whereby to prevent the petroleum product from passlower portion of the casing 22 to the opposite 6 side of the casing, at which point this incoming liquid will be directed upwardly and will thence pass through the opposite screen wall 42 into the chamber surrounding the oat cylinder 32.

During this horizontal iiow of the petroleum l0 product as it expands into the larger chamber 22, its velocity is reduced or decelerated to substantially one-half its entering velocity, and therefore at this relatively slower speed, the entrained water will be separated by the screen walls l5 of the chamber 38 so that the petrolum product, freed of such entrainedwater, thence passes in wardly through the upper ports 34, into the upper portion 'of the'float cylinder 32, thence across the valve seat `36, out the discharge port 28, and

through the outlet conduit forming a continuation of the dispensing line.

Thus there is created within the iioat chamber 32, above the lowermost position of the float 64,

a ilow of liquid through the ports 34 and past 25 the valve seat 36 at a considerable velocity. If the incoming petroleum product contain entrained water, then during the horizontal decelerated flow of this petroleum product, as above described, a portion of the water will have oppor-` 30 tunity to separate by gravity, and this portion will immediately ow downwardly into the iioat basin 98. In addition, the entrained water, which is separated from the more slowly flowing stream of petroleum product by the screens 33. will gravitate vertically downwardly and will be directed by the downwardly inclined walls oi' the basin 98 into the lowermost portion of the basin where this water will accumulate and will pass through the screen l04 into the float chamber of the lower 40 iloat controlled unit so that, when a suiiicient `quantity of this water has accumulated, it will raise the float and the needle valve, letting the water discharge into the water discharge passage Ii4, whence it will be gradually discharged through the water discharge nozzle i233. Inasmuch as this iloat is of sturdy construction and is buoyant only in water, no petroleum product will be discharged, and when the accumulated the float will immediately close to preclude the further discharge of water. Hence, this oat will rise or fall, depending upon the accumulation of water present, and will continue automatically to discharge the water while the dispensing operation is in progress, due to the fact that the suction of the pump it is of greater capacity, or rather, is of sufiiclet capacity so that the water discharge will continue to function during the operation of this pump and during the continuous iipw of petroleum product through the separating device.

If the liquid petroleum product entering the casing 22 through the port 24 at relatively high velocity should contain entrained petroleum 35 fore described, the means for accomplishing this specifically comprises the upper float control device which is more sensitive than the lower oat control device. The upper device is buoyant in, or sensitive to, petroleum emulsion but not to liquid petroleum product. It is also sensitive to 7s water. Petroleum emulsion is heavier than liquid petroleum product. Since the petroleum emulsion is present in a greater proportion at the lower portion of the incoming, downwardly directed stream, the liquid which is delivered to the upper iioat control device through the gathering device fias a relatively greater percentage of emulsion than the liquid in the other parts of the separating device E outside of the chamber 34. Water alsowill be present in a greater proportion at the lower portion of the incoming, downwardly directed stream, and similarly, therefore, the liquid which is delivered to the upper float control device has a relatively greater percentage of water thanthe liquid in the other parts of the separating device 6, outside of the chamber 34. Hence, the emulsion and/or water separated from the liquid petroleum product in the chamber will rise in level therein at a greater rate than the emulsion and/or water separated from the liquid petroleum product in the separator outside of the chamber 34.

The quick raising of the float 64 is therefore due to the combined effect (1) of the entrained constituents of heavier speciilc gravity than the petroleum product; (2) of the petroleum product iiowing through the passage between the iloat and the inner wall of the iioat cylinder, and'(3) of the petroleum product flowing through the ports 34 into the outlet port 28. As the heavier uids enter and accumulate in the cylinder 32 to a predetermined level, the iloat rises so that it is adjacent or within the inwardly projecting ilange of the upper wall. of the cylinder and thereby creates a restricted passage, which causes the ilow of petroleum product past the iioat to be accelerated. The petroleum product at this increased velocity of flow effects a quick raising of the oat relative to the heavier iluids and intg the zone oi! influence oi' the petroleum product passing through ports 34 into port 28. The petroleum product passing through ports 34 into port 28 at a relatively high velocity then efl'ects a further and more rapid raising of the iloat relative to the heavier fluids and moves the oat quickly to valve closing position.

In the event that petroleum emulsion and/or water should accumulate in a slight amount within the bottom portion of the oat cylinder 32, water level has dropped to a predetermined point, 50

that is, in an amount insufficient to raise this float, then upon the termination of the dispensing operation, the water and/or petroleum emulsion present therein will drain downwardly through the gathering device into the lower basin 98, whence the emulsion and/or water, or the water constituent of the petroleum emulsion, will stratify out in this basin.

It will be appreciated that I have provided a very sturdy float controlled mechanism for the lower level, whereby to insure the automatic discharge of water during the dispensing operation, while precluding the discharge therethrough ot petroleum product or petroleum product emulsion. In addition, by making the lower iioat very sturdy and buoyant only to water, I am enabled to provide an extremely sensitive upper iloat which is buoyant only to petroleum prduct emulsion and not to petroleum product itself, .and which upper iloat provides a very sensitive control for immediately stopping or closing the dispensing line in the presence of the suitable volumes of entrained water and/or petroleum product emulsion which might otherwise be discharged with the petroleum product and, in addition, by providing the foregoing arrangement.

in the event that the lower iioat control mechanism should become inoperative, as by freezing of the separated water, the upper control mech- I anism will still be operative to stop or close the control line in the presence of entrained water, whereby to preclude the passage of this water through the dispensing line.

In my application Serial No. 323,560, filed March 12, 1940, I have shown a construction similar to the portion 92 for accelerating the movement of the float upwardly, whereby to insure that the valve closes prior to the passage of water through the outlet ports, and I have claimed the same in such application, and therefore do not claim such subject-matter broadly except in so far as it enters into combination with the subject-matter of the present application. The construction of the present application does show, however, another adaptation of the invention claimed in my prior mentioned application inasmuch as the present device shows a means for increasing the discharge capacity of a device shown in my prior application, by increasing the size of the outlet port 28 and the size of the ports 3d.

In Figure 8 of the drawings I have shown a further adaptation of my invention as applied to a portable unit adapted to be connected to a tank |50. In this device the segregator is identical with the segregator system shown in Figure 1 of the drawingsexcept that it is mounted on a portable carriage |52 having wheels |54 and a supporting stand |56 and is provided with a flexible hose |58 and a manifold connection |60 adapted to be connected to a plurality of outlets from the diierent sources of supply, such heavier liquid in said casing to pass into said shell as the various tanksy of the tank truck |50. Each f one of these outlets is provided with its own control valve |62 whereby the contents of the sepai rate tanks may be discharged at will through the flexible hose into the segregator B, out through the pump I0, and out through the hose ill formed with the valve operated dispensing nozzle i6.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a device of the class described, in combination with a reservoir for liquid petroleum product which may contain entrained liquid of greater speciiic gravity, means forming a dispensing line including a conduit connected to said reservoir, means associated with said line and reservoir for causing the liquid petroleum product to flow from said reservoir through said dispensing line, the liquid of greater specic gravity entrained in said liquid petroleum product ilowing from said reservoir into said conduit with the liquid petroleum product, a casing forming a part of said dispensing line, said casing having an inlet passage connected to said conduit, a iioat receiving shell in said casing, means forming a common outlet passage from the upper portion of said shell and said casing, said shell having a main inlet passage in the upper portion thereof and having an imperforate portion below said outlet passage, a float in said shell and adapted, when raised, to fit said imperforate portion with slight clearance, a conduit connected to said outlet passage for delivering the liquid petroleum product from said casing, a valve carried by said float for opening and closing said outlet passage, said shell having an inlet opening in its lower portion, means for causing the through said inlet opening, said inlet opening -being relatively small compared to said main inlet passage, means for varying the size of said main inlet passage and means for discharging from said casing, the heavier liquid settling in the bottom thereof.

2. In a device of the class described, in combination with a reservoir for liquid petroleum product which may contain entrained liquid of greater specific gravity, means forming adispensing conduit, means associated with said conduit and reservoir for causing the liquid petroleum product to flow through said dispensing conduit, the entrained liquid of greater specic gravity owing from said reservoir into said conduit with said liquid petroleum product, a liquid separator forming a part of said conduit and comprising an outer casing having an inlet port, a second inner casing within said outer casing and small relative to the outer casing, means forming a discharge passage extending from the upper portion of the inner casing and out of the outer casing, said inner casing having in its upper portion a main inlet port through which the liquid petroleum product passes into the inner casing and toward the discharge passage, a iioat in said inner casing, means operated by said iloat for closing and opening said discharge passage as the iioat rises and falls, said float being responsive to the liquid of greater specific gravity but not to the liquid petroleum product, a conduit leading to said inner casing and terminating adjacent the lower portion of said outer casing to permit the liquid of greater specic gravity to pass into said inner casing from said outer casing and accumulate beneath said iioat to raise said float, means "associated with the iloat and positioned by the oat to variably restrict the stream of liquid petroleum product as it flows through said main inlet port toward said discharge passage whereby to vary the speed of rise of said float relative to the rate of flow of the heavier liquid into said inner casing, and means for discharging from said outer casing, the separated liquid of greater specific gravity.

3. In a fluid segregating system, a reservoir for liquid petroleum product which may contain entrained liquid of greater specific gravity, a liquid segregator comprising a casing having an inlet port connected to said reservoir and having a discharge port, a valve in said segregator for controlling the opening and closing of said discharge port, a delivery conduit connected to said discharge port, means associated with said reservoir and segregator -for causing the liquid petroleum product to flow from said reservoir to said segregator and from said segregator through said conduit at a relatively high velocity, the entrained liquid of greater specic gravity flowing from said reservoir into said segregator with the liquid petroleum product, means forming a float receiving and .liquid separating chamber within said segregator, said chamber having openings to receive liquid from said casing, the upper portion of said chamber being in communication with said discharge port and the lower portion of said chamber having an inlet port. a oat in said chamber and connected to said valve for operating said valve, means in said segregator for dividing the stream of liquid entering said segregator through said inlet port into two portions, one a main portion and the other a relativelysmali portion, said dividing means comprising a conduit leading to the inlet port in said chamber from conduit being of such size relative to each other as to decelerate the main portion of the stream sufficiently to separate the heavier liquid from the liquid petroleum product while delivering the small portion of the stream to the inlet port of said chamber at -a higher rate whereby to cause the float in said chamber to be moved upwardly at a greater rate than the rate at which the heavier liquid separated from the main portion of the stream rises in level in the segregator outside oi said chamber, and means for discharging from said casing', the heavier liquid settling to the bottom thereof.

4. In a liquid dispensing apparatus, a reservoir for liquid petroleum product which may contain water and a petroleum emulsion of speciiic gravity less than water but greater than the liquid petroleum product, a liquid segregator comprising a casing having an inlet port connected to said reservoir and having a discharge port, a vlve in said segregator for controlling said discharge port, a dispensing conduit connected to said discharge port, means associated with said reservoir and segregator for causing the liquid petroleum product to iiow from said reservoir to said segregator and from said segregator through said conduit at a relatively high velocity, entrained water and petroleum emulsion flowing from said lreservoir to said segregator with the liquid petroleum product, means forming a float receiving and liquid separating' chamber in said segregator, the upper portion of said chamber` being formed with an opening positioned to estabiish communication with said discharge port and having below said opening, another opening for receiving liquid from said casing, the lower portion of said chamber having an inlet port estab- I lishing liquid communication with said segregator outside said chamber, a iioat in said chamber and connected to said valve for operating said valve, means in said segregator for dividing the stream of liquid entering said segregator into two portions, one a main portion and the other` a rela- :tively small portion, the segregator being constructed to cause the small portion of the stream to be more heavily charged with entrained water and petroleum emulsion than the main portion of the stream, said segregator and dividing means being so constructed and arranged as to decelerate the main portion oi the stream sumciently to separate the water and emulsion from the liquid petroleum product while delivering the small portion of the stream to the inlet port of said chamber at a higher rate whereby to cause the iloat to be moved upwardly at a greater rate than the rate at which the separated emulsion outside the chamber rises in level, said segregator having a water discharge port, a second iioat in said segregator beneath said nrst mentioned float chamber, said second oat being buoyant to water but sinking in the liquid petroleum product and the petroleum emulsion, and means actuated by said second iloat for controlling the opening and closing of said water discharge port.

5. in a liquid dispensing apparatus, a reservoir l for liquid petroleum product which may contain an entrained liquid or greater specific gravity, a

segregator comprising a casing having inlet and outlet ports, a dispensing line having a portion connected to said reservoir and to the inlet port. of said casing and a portion connected to the. outlet port of said casing, means for causing the liquid petroleum product to iiow from said reservoir through said line and through said casing, the entrained heavier liquid flowing from the reservoir through said line and into the casing with the liquid petroleum product, means in said casing forming an internal chamber having an upper opening positioned to establish communication with the outlet port of said casing, a conduit leading to the lower part of said chamber and having its intake end terminating in said casing adjacent the lower wall thereof, the upper portion of said chamber having a relatively large inlet port through which liquid in the casing flows from outside the chamber to the outlet port, said chamber having a relatively smaller port in its lower portion and communicating with said conduit, a float in said chamber and movable between said lower and upper portions of the chamber, said oat being buoyant in the heavier liquid and sinking in the liquid petroleum product, a valve connected to said iloat and operated thereby for controlling the opening and closing of said outlet port, a main portion of the liquid entering said casing passing into said chamber through said relatively large inlet port and a smaller portionl of the liquid entering said casing passing through said conduit into said chamber through said relatively smaller port at a relatively higher rate of travel whereby to cause the iloat to be moved upwardly in said chamber at a greater rate than the rate of rise of the separated heavier liquid in the casing outside said chamber, and means for discharging the separated heavier liquid from the lower portion of said casing.

6. In a liquid dispensing apparatus, a reservoir for liquid petroleum product which may contain a liquid of greater specific gravity entrained in the liquid petroleum product, a liquid separator comprising a casing having an inlet and an outlet. a dispensing conduit connected with said outlet, means associated with said separator and reservoir for causing the liquid petroleum product to iiow from said reservoir through said inlet and into said separator and from said separator through said outlet and said conduit, the entrained liquid of greater speciilc gravity Iflowing from said reservoir and into said separator with said liquid petroleum product, said separator being so constructed and arranged as to separate within the casing the entrained heavier liquid from the liquid petroleum product, means forming an auxiliary liquid separating chamber within said casing, said chamber having an opening therein positioned to establish communication with the outlet of said casing, said chamber having a port in its upper portion positioned to pass the liquid petroleum product from said casing into said chamber, the liquid petroleum product passing into said casing through said port owing through said opening to the outlet of the casing, said chamber having in its lower portion an inlet opening, means operated by the heavier liquid as the level of said heavier liquid in said chamber varies for controlling the opening and closing of said outlet. means in said separator casing i'or dividing the stream of liquid entering said casing through said inlet into two portions, one a main portion and the other a relatively small portion, theeparator being vso constructed as to cause the smal portion of the-stream to be more heavily charged with the entrained heavier liquid than the main portion of the stream, flow directing means in said casing so positioned as to decelerate the lmain portion of the stream suiliciently to permit separation of the entrained heavier liquid from the liquid petroleum product as the liquid petroleum product flows toward the inlet port of said chamber, said dividing means being so constructed and arranged as to direct a small portion of the stream to the inlet opening of said chamber at a higher rate than the rate of flow of the liquid petroleum product toward the inlet port of said chamber whereby to cause the heavier liquid separated in the chamber to rise in level at a more rapid rate than the rise in level of the separated heavier liquid in the casing outside of said chamber, and means for discharging from said casing, the separated liquid of greatest speciilc gravity collected in the bottom thereof.

7. In a liquid segregating system, a reservoir for liquid petroleum product which may contain two entrained liquids of different specific gravities greater than the specific gravity of the liquid petroleum product, a liquid segregator device comprising a casing having an inlet, means associated with said reservoir and device for supplying the liquids from said reservoir to the lin let of said casing, said casing having a discharge port for the liquid petroleum product supplied thereto and means connected to said discharge port for delivering said liquid petroleum product to a point of delivery, said casing having a lower portion for collecting the segregated liquid of greatest specific gravity, the lower portion of said casing having a discharge port for the liquid of greatest specific gravity, means operated by the liquid of greatest specific gravity as the level thereof in said portion of the casing varies for controlling the opening and closing of said last mentioned discharge'port to discharge said liquid of greatest specific gravity, means forming a chamber in the upper portion'of said casing, a valve for controlling the opening and closing of the discharge port for the liquid petroleum product, a float in said chamber and operatively connected to said valve for controlling said valve, said float being buoyant in the liquids of specific gravity greater than the petroleum product, said casing having its inlet, through which liquid is supplied to said casing, between said upper and lower portions, whereby stratification of the liquids in said inlet tends to result in the liquid of greater specific gravity entering said lower portion of said casing and liquid of lesser specific gravity entering the Aupper portion thereof surrounding said chamber, and means lfor conducting a small portion of the stream of liquids entering said casing through said inlet directly to said chamber beneath said iloat for raising said float to valve closing position in response tothe accumulation of the liquid of greatest or intermediate specific gravity in said chamber to one or another predeter-V mined level. g

8. In a liquid dispensing apparatus, a reservoir for liquid petroleum product which may contain a liquid of greater specific gravity, a segregator comprising a casing having a lower inlet port and an outlet port at the top ofthe casing, a dispensing conduit connected with said outlet port, means associated with said segregatorand reservoir for causing the liquid petroleum product to ilow from said reservoir to said inlet port and into said segregator casing and from said segregator casingthrough .said outlet port and said conduit, the heavier liquid ilowing from the reservoir into said segregator casing with the liquid petroleum`V product and being entrained therein, meansY associated with said casing and forming a chamber having an outlet port in communication with said dispensing conduit, a float in said chamber, -said chamber being in com-v munication with the inlet port of said casing andV having ports to allow the lighter uid from said casing to flow to vsaid dispensing conduit, a second conduit connected with said last means and terminating in a nozzle located at the lower wall of said casing and adjacent the inlet port thereof to pick up the heavier liquid flowing along said wall,and through which passes into the chambera portion of the liquid petroleum product and entrained heavier liquid flowing into the inlet port of said casing, said segregator casing and said chamber being each constructed and arranged to separate the entrained heavier liquid from the liquid petroleum product flowing into said casing and chamber throughithei'r inlet ports and second conduit respectively, an imperforate 'portion of said chamber cooperating with said float'for causing the heavier liquid to rise in level at aV greater rate in said chamber than the heavier liquid rises in level in said segs egator casing, means associated with said cham:

ber and operated by the heavier liquid as the level thereof in said chamber varies for controlling the opening and closing of the outlet port of said casing, and means for discharging the separated heavier liquid from the lower part :of

said casing.

9. In a liquid dispensing apparatus, a vreservoir for liquid petroleum product which may containv a liquid of greater specic gravity, a segregator comprising a casing having inlet and outlet ports,

a dispensing conduit connected with said` outlet port. means associated with said casing and forming a chamber having an outlet in communication with said conduit, said chamber having an inlet, liquid forcing means associated lwith said reservoir, said conduit and said casing for causing the liquid petroleum product to flow from ber and comprising a conduit communicating with said chamber inlet and terminating adJacent the lower surface of said inlet port of said casing to Supply a portion of the heavier liquid to said chamber through said chamber inlet at a rate such that the ratio of said rate to the voiume of the chamber is greater than the ratio of the rate of flow of the heavier liquid into the casing to the volume of the casing,l whereby the heavier liquidrises in level in the chamber at a faster rate than in the segregator casing, and means including a control element operated by the heavier liquid as the level thereof in said chamber varies for controlling the opening and closing of said casing outlet port and means for discharging the separated heavier liquid from the lower part of said casing.

, DAVID SAMIRAN. 

